esker
英 ['eskə]
- n. [地质] 蛇形丘；冰河沙堆
英英释义
- 1. (geology) a long winding ridge of post glacial gravel and other sediment; deposited by meltwater from glaciers or ice sheets
中文词源
esker 蛇形丘
来自爱尔兰语。
英文词源
- esker (n.)
- "deposit left by a glacial stream," 1852, from Irish eiscir "ridge of gravel."